package com.atguigu.gulimall.product.exception;

import com.atguigu.common.exception.BizCodeEnume;
import com.atguigu.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * 集中处理所有异常
 */
//controller包下的所有类都要进行异常处理
@Slf4j
//@ResponseBody   //以json方式返回
//@ControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")
@RestControllerAdvice(basePackages = "com.atguigu.gulimall.product.controller")     //上面两个的整合
public class GulimallExceptionControllerAdvice {
    
    @ExceptionHandler(value = MethodArgumentNotValidException.class)
    public R handleVaildException(MethodArgumentNotValidException e){
//        log.error("数据校验出现问题",e.getMessage(),e.getClass());
        //result封装了校验结果
        BindingResult bindingResult = e.getBindingResult();
        Map<String,String> erroMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach(fieldError -> {
            erroMap.put(fieldError.getField(),fieldError.getDefaultMessage());
        });
        return R.error(BizCodeEnume.SMS_CODE_EXCEPTION.getCode(),BizCodeEnume.SMS_CODE_EXCEPTION.getMsg()).put("data",erroMap);
    }

    //最大的异常处理，当其他异常都不被调用时，调用该方法
    @ExceptionHandler(value = Throwable.class)
    public R handleException(){
        return R.error(BizCodeEnume.UNKNOW_EXCEPTION.getCode(),BizCodeEnume.UNKNOW_EXCEPTION.getMsg());
    }
}
